Tool-holder.



M. w. MURRAY.

TOOL HOLDER. APPLIOATION FILED MAY 14, 1908.

Patented Dec. 8,1908.

MICHAEL W. MURRAY, OF LONGMEADOW, MASSACHUSETTS.

TOOL-HOLDER.

Specification of Letters Patent.

Patented Dec. 8, 1908.

Application filed May 14, 1908. Serial No. 432,862.

To all whom it may concern:

Be it known that I, MICHAEL W. MURRAY,

a citizen of the United States of America, residing at Longmeadow, inthe county of Hampden and State of Massachusetts, have invented new anduseful Improvements in Tool-Holders, of which the following is aspecification.

This invention relates to improvements in tool-grinding or sharpeningdevices, and has special reference to the grinding of plane irons,chisels, and gouges so that the same angle will always be maintainedduring the grinding process.

The invention is also designed so the operator may readily inspect theedge of the tool during the process of grinding the same.

It also has for its object to so construct the device that it may bereadily brought into use, and folded away from. the revolving stone whennot in use. 7

In the drawings forming part of this application,-Figure 1 is a sideelevation on line 11 of Fig. 2 showing the device partly in section anda tool in place during the process of grinding, and in dotted lines theclamping frame in a lifted position while inspecting the tool. Fig. 2 isan end elevation of Fig. 1 looking from the left-hand side of thefigure. Fig. 3 is a plan view of Fig. 1. Fig. 4 is a perspective view ofthe tool-holding portion of the device showing the same in use whengrinding a gouge. Fig. 5 is a transverse sectional view onthe line 55 ofFig. 4. Fig. 6 is a transverse sectional view on the line 66 of Fig. 3showing the construction of the clamp for holding a plane iron orchisel. Fig. 7 is a transverse sectional view on line 77 of Fig. 5showing the construction of the clamp that is used for holding a gougewhile being ground or sharpened.

Referring to the drawings, a, designates an emery wheel or grindstonemounted on the shaft (1 in any approved manner.

I) designates a metal standard secured to the framework in which thestone is mounted, the same being provided with a slot 0 therein. Thestandard is adapted to adjustably hold an angular braoket-a'rmd which issecured to the standard I) by means of the bolt e.

Slidably mounted on the horizontal arm f of the bracket-arm d is a hingemember 9 that is adjustably secured to the horizontally disposed arm fby means of the set-screw .h. This member is provided with the ears '6in which is pivotally mounted the vertically arranged boltj which isprovided with a nut 76 at its upper end. The bolt 3' is further providedwith a turned or finished portion m for pivotally securing the sleeve nto the hinge member 9. The hinge member 9 is ivotally connected to thebolt j by means 0 the pin j Slidably mounted in this sleeve is a rod ortube 0 which is prevented from rotation by means of the bolt p engagingthe longitudinal slots g which are diametrically cut in the sleevemember, as shown. The nut 12 looks the tubeo' to the sleeve n. Theforwardend of the rod or tube 0 is provided with a thumbscrew 1" that isadapted to lock the yokeshaped handle member 8 against rotation whensharpening a plane iron'or chisel, but will at the same time permit saidmember to rotate when the thumb-nut is loosened. The handle-member s isprovided with the transverse slot t as shown in Fig. 5, for allowing thesame to be rotated transversely. The left-hand end of the handle members is provided with hand openings 11. for enabling the user to operatethe device as will be described. Pivotally secured to the arms w of thehandle member s is a rectangular toolholding frame '0 that is connectedto the arms w of'the handle member s by means of the pivot screws :20.

y designates an arc-shaped slot in the clamping member 2 of thetool-holding frame 1) and passing through the slot is the thumbnut 2which screws into the arms 2 of the clamping-frame '0 whereby the member2 is adjustably secured to the arms 2 of the frame 1) and the chisel orplane iron can then be ground at any desired angle. The inner ends ofthe arms 2 of the frame 12 are pivotally mounted on the screws :1: whichpass through the inner ends of the arms 2 and intothe clamping member sroper of the frame v. This construction t erefore permits the member 2to be moved independently of the arms 2, and with the arms 2 when thethumbnut 2 is tightened after the tool is inserted and properly clamped.In order to clamp a tool for sharpening it in the frame 1), the clampingmember 2 is made channel-shape in cross section, as shown in Figs. 6 and7, on the undersidethereof. The clamping mem ber 2 is provided with arectangular member 4 through which the chisel or plane iron 5 isinserted.

6 designates the thumb-nut that is threaded onto the stem member 7 thatis integral with the upper portion of the frame 4 whereby means of thethumb-nut 6.

by this frame may be drawn upward into the channel portion of the member2 and the chisel or plane iron clamped between the upper edge of themember 2 and the lower member or bar 4 of the rectangular member 4, asclearly shown in Figs. 1 and 6.

Fig. 7 shows a modification in which a gouge is shown clamped in theframe; element 2 by means of the holder 9 which has a curved bottom bar9 corresponding to the curvature of the gouge.

Referring now to the operation of the grinding device: After a chisel orplane iron is clamped as described, and the angle properly adjusted bymeans of the thumb-nut 2, the operator tightens the thumb-nut r so as toprevent any lateral rotation of the handlemember s; then by grasping thehandle 0 enings u, suitable pressure may bev place on the tool whilebeing ground or sharpened. The ivots as which secure the arms 2 to thehand e-member .9 permit the operator to lift the chisel or plane ironfrom the stone or emery-wheel so that the edge of the same may beinspected during the sharpening process. The rod 0 can be freely movedlongitudinally in the sleeve n for permitting the tool to be movedtowards and from the stone. The lips '0 of the frame 12 engage the upperedge of the arms w for, preventing the frame 1) dropping down too far.In practice, the rod 0 is clamped to the sleeve n and the tool ground bybearing down on the handles.

When it is desired to grin a gouge, the rectangular clamping frame l isremoved and the clamping frame shown in Fig. 7 is substituted therefor,and the gouge, which is designated at 8, is suitably clamped thereinThe. operator then loosens the thumb-nut 1" which permits the hand-frames to rotate axially of the rod 0 thus allowing the gouge to be ground ona curvature, and at the same time permit the frame 8 to havelongitudinal movement in the sleeve n, if required, by loosening the nut19 The gouge can be readily inspected during the grinding process bysimply lifting the frame member 1) in the manner already described.

When the device is not in use, it can be readily folded into a verticalposition by simply rotating the rod 0 on the bolt j about the bearingportion m, and the pivot 3' will then permit the rod 0 to be folded intoa vertical position against the bracket of as readily understood.

What I claim, is

1. In a grinding device of the class described, an upright member, abracket secured thereto, a sleeve pivotally secured to the bracket, arod longitudinally movable within the sleeve, a tool-clamping member,

-; and means for securing the tool-clamping member to the rod, saidmeans permitting the tool to have a lateral rotary movement ing the toolat diflerent angles.

2. In combination with a tool-holding member, means for adjusting themember at different angles, a handle-member, means for pivotallysecuring the tool-holding member to the handle member, and means forpivotally securing the handle-member to a supporting element.

3. In combination, a tool-clamping member, a rod, means for slidablyconnecting the rod to a standard, ahandle member rotatably connected tothe rod, said tool clamping member being pivotally connected to thehandle member, and means for adjusting the plane of the tool withrelation to the handle member.

4. In combination, a standard, a tool clamping member, a rod, means forslidably connecting the rod to a standard, a handle member rotatablyconnected to the rod, said tool-clamping member being pivotallyconnected to the handle member, and means forv adjusting the lane of thetool with relation to the ham e member and means for permitting the rodto be moved in either a vertical or horizontal plane.

5. In combination, a tool-clamping member, a rod, means for slidablyconnecting the rod to a standard, a handle member rotatably connected tothe rod, said toolclamping member being pivotally connected tov thehandle-member, means for adjusting the plane of the tool with relationto thehandle member, means for permitting the rod to be moved in eithera vertical or horizontal plane, and means for adjusting the rod in atransverse direction with relation to the grinding wheel.

6. In combination, a handle member, a tool-clamping member pivotallymounted therein, a rod for supporting the same, means for adjustablyretaining the tool clamping member in difierent angular positions ofadjustment, and means for permitting the handle member to move in adirection transverse to the axis of the rod.

7. A tool-grinding device having in combination, a rod, means forpermitting the same to move in horizontal and vertical planes, a handlemember having means for rotatably connecting said member and rod, atool-holding frame pivotally connected to the handle member, atool-clamp and means for adjnstably securing the tool-clamp to thetool-holding frame, said frame being provided with stop means to engagethe handle member, as described.

8. A tool-grinding device having in combination a handle member, atool-holding frame pivoted thereto and having stop members engaging thehandle member, thumbnuts 2 for varying the angle of adjustment with thehandle-member, a standard, a rod slidably and pivotally secured thereto,and

'With relation thereto, and means for adjustjustably and pivotallyconnected to the rod, as described.

MICHAEL W. MURRAY.

means for securing the handle member to the rod.

9. A tool-grinding device havlng in combination, a standard, a bracketsecured there- 5 to, a rod connected to the bracket by auni- Witnesses:

versal joint construction, a handle member K. I. CLEMONS, secured to therod, a tool-holding frame ad- H. W. BOWEN.

